Feeder and double knitted fabric manufacturing method

Abstract

To reduce defective products when manufacturing a double knitted fabric having a constitution in which a plating texture is linked with a ground knitted texture on one side knitted fabric and the other side knitted fabric respectively.SOLUTION: A feeder has one side yarn feeding port that opens on a surface on inner side in radial direction of a dial of a main body. The one side yarn feeding port guides a knitting yarn to be knitted as a one side ground knitted texture toward a knit area of a cylinder needle set on a needle bed of a cylinder. The feeder has a guide groove to guide a knitting yarn to be knitted as the other side plating texture or one side plating texture toward the knit area of a dial needle or the knit area of the cylinder needle. The feeder has an overhanging piece that overhangs to outer side in radial direction from the main body. The feeder has the other side yarn feeding port that is provided on the overhanging piece and guides the knitting yarn toward the knit area of the dial needle when the knitting yarn to be knitted as the other side ground knitted texture is passed.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a feeder applicable to a dial-cylinder type circular knitting machine, which is an apparatus for producing double knit fabrics, and a method for producing double knit fabrics by the circular knitting machine. [Background technology]

[0002] In this disclosure, the term "double knit fabric" refers to a fabric in which one side knit fabric constituting one surface and the other side knit fabric constituting the other surface are connected by a connecting yarn. There are double knit fabrics in which the one side knit fabric and the other side knit fabric are each made of a ground knit fabric made of spun yarn made of staple cotton and a plating fabric made of elastic polyester yarn, resulting in a five-layer structure (see, for example, Patent Document 1 below). Here, the five-layer double knit fabric described in Patent Document 1 is produced by using a dial-cylinder type circular knitting machine and knitting the one side knit fabric and the other side knit fabric with the dial needles and cylinder needles, respectively.

[0003] Incidentally, when a knitted fabric having a structure in which a ground knitting structure is combined with a plating structure is knitted by a circular knitting machine, the knitting yarn to be knitted as the ground knitting structure and the knitting yarn to be knitted as the plating structure must be fed from separate yarn feeding routes toward one knitting region. In this case, if the direction in which the yarn path of the knitting yarn extends is reversed due to the inclusion of so-called "fibers" (a collection of fibers that have fallen off the spun yarn), a plating structure will appear where the ground knitting structure should appear, and a defective knitted fabric will be knitted in which the ground knitting structure appears where the plating structure should appear.

[0004] As a technology capable of reducing the risk of knitting defective knitted fabrics as described above, for example, the technology of a yarn feed guide (also generally called a "feeder") described in Patent Document 2 is known. In this technology, a yarn feed port for inserting a cotton yarn and an arc-shaped cutout portion are provided below the yarn feed guide of a circular knitting machine, and a concave guide piece for guiding an elastic fiber yarn is provided near the cutout portion. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 2022-023308 [Patent Document 2] Japanese Patent Application Publication No. 11-269744 Summary of the Invention [Problem to be solved by the invention]

[0006] When the yarn feeding guide described in Patent Document 2 is applied to a dial-cylinder type circular knitting machine, it can only guide the knitting yarn fed to the cylinder needles. Therefore, in producing the five-layer double knit fabric described in Patent Document 1, there remains a risk that a plating texture will appear in a place where the ground knit texture should appear, and that a defective product will be knitted in which the ground knit texture appears in a place where the plating texture should appear.

[0007] The present disclosure makes it possible to reduce the risk of producing defective products when producing double knit fabrics in which one side knit fabric and the other side knit fabric are each configured by combining a ground knit fabric with a plating fabric. [Means for solving the problem]

[0008] According to one feature of the present disclosure, a feeder is provided for use in a dial-cylinder type circular knitting machine that is a device for producing double knit fabric. Here, the double knit fabric has a configuration in which a one-side knit fabric constituting a surface on one side and an other-side knit fabric constituting a surface on the other side are joined together by a connecting yarn into one piece. The one-side knit fabric has a one-side ground knitting structure exposed on one side and a one-side plating structure aligned along the other side surface of the one-side ground knitting structure. The other-side knit fabric has a other-side ground knitting structure exposed on the other side and a other-side plating structure aligned along the one side surface of the other-side ground knitting structure. The feeder has a main body that is set at a position that is radially outward of the dial from the needle bed of the cylinder in the circular knitting machine. The feeder also has a one-side yarn feed opening that is opened on a surface of the main body that is radially inward of the dial. The one-side yarn feeder guides the knitting yarn to be knitted as the one-side ground knit structure toward the knit area of ​​the cylinder needle set on the needle bed of the cylinder when the knitting yarn is passed from the radial outside. The feeder also has a guide groove that guides the knitting yarn to be knitted as the other-side plating structure or the one-side plating structure toward the knit area of ​​the dial needle set on the needle bed of the dial or the knit area of ​​the cylinder needle. The feeder also has a protruding piece that protrudes radially outward from the main body and forms at least a part of the wall of the guide groove. The feeder also has a other-side yarn feeder that is provided on the protruding piece and guides the knitting yarn to be knitted as the other-side ground knit structure toward the knit area of ​​the dial needle when the knitting yarn is passed.

[0009] The above-mentioned feeder can be applied to a dial-cylinder type circular knitting machine to feed a knitting yarn to be knitted as one side fabric or a knitting yarn to be knitted as the other side fabric. When the feeder feeds a knitting yarn to be knitted as the other side fabric, the feeder guides the knitting yarn to be knitted as the other side ground knitting structure toward the knit area of ​​the dial needle by the other side yarn feeder, and guides the knitting yarn to be knitted as the other side plating structure toward the knit area of ​​the dial needle by the guide groove. This reduces the risk of the other side plating structure appearing in the place where the other side ground knitting structure should appear, and of knitting a defective product in which the other side ground knitting structure appears in the place where the other side plating structure should appear. Also, when the feeder feeds a knitting yarn to be knitted as one side fabric, the feeder guides the knitting yarn to be knitted as the one side ground knitting structure toward the knit area of ​​the cylinder needle by the one side yarn feeder, and guides the knitting yarn to be knitted as the one side plating structure toward the knit area of ​​the cylinder needle by the guide groove. As a result, the feeder reduces the risk of knitting defective products in which one side plating texture appears in a place where one side ground knit texture should appear, and one side ground knit texture appears in a place where one side plating texture should appear. Due to these actions, the feeder can reduce the risk of knitting defective products when producing double knit fabrics in which the one side knit fabric and the other side knit fabric are each configured by combining the plating texture with the ground knit texture.

[0010] According to another aspect, the protruding piece covers a dial needle outlet area, which is an area where the dial needle is radially outwardly protruded to receive the knitting yarn in the circular knitting machine, from the side where the dial needle receives the knitting yarn. Also, the other side yarn feeder is opened on the end surface of the protruding piece that faces the dial needle outlet area.

[0011] In the above circular knitting machine, the knitting yarn to be knitted as the other side ground knit structure is received by the dial needle in the dial needle outlet area and drawn toward the knit area of ​​the dial needle. Here, according to the above feeder, the knitting yarn passed through the other side yarn feeder is output to the dial needle outlet area, so that the dial needle of the circular knitting machine can receive the knitting yarn as it is and draw it into the knit area of ​​the dial needle. This makes it possible to provide a feeder that further reduces the risk of the direction of the yarn path of the knitting yarn being changed by shortening the length of the part where the knitting yarn is not guided by other members in the yarn path from the other side yarn feeder to the knit area of ​​the dial needle.

[0012] According to another aspect, the other side yarn feeder is inclined radially inwardly toward the dial needle outlet area.

[0013] In the above circular knitting machine, the knitting yarn is drawn into the knitting area of ​​the dial needle from the radially outer side to the radially inner side of the dial. Here, according to the above feeder, the knitting yarn passed through the other side yarn feeder is extended in a state inclined radially inward toward the dial needle exit area. This makes it possible to provide a feeder that can more smoothly draw in the knitting yarn with the dial needle.

[0014] According to another aspect, there is provided a method for producing a double knit fabric, which will be described later, by a dial-cylinder type circular knitting machine. Here, the double knit fabric has a configuration in which a one-side knit fabric constituting one side of the surface and an other-side knit fabric constituting the other side of the surface are joined together by a connecting yarn. The one-side knit fabric has a one-side ground knit structure exposed to one side and a one-side plating structure aligned along the other side surface of the one-side ground knit structure. The other-side knit fabric has an other-side ground knit structure exposed to the other side and an other-side plating structure aligned along the one side surface of the other-side ground knit structure. In the method for producing a double knit fabric, a first feeder and a second feeder, each of which is the above-mentioned feeder, are applied to a circular knitting machine. In addition, in a method for producing a double knit fabric, a knitting yarn to be knitted in a one-side ground knit structure is passed from the radial outside through one of the yarn feed openings of a first feeder, a knitting yarn to be knitted in a one-side plating structure is hung in the guide groove of the first feeder, a knitting yarn to be knitted in a other-side plating structure is hung in the guide groove of a second feeder, and a knitting yarn to be knitted in a other-side ground knit structure is passed through the other-side yarn feed opening of the second feeder, and a double knit fabric is produced by a knitting process in which these knitting yarns are knitted using a circular knitting machine.

[0015] According to the above method, the second feeder guides the knitting yarn to be knitted as the other side ground knitting structure toward the knit area of ​​the dial needle by the other side yarn feeder, and guides the knitting yarn to be knitted as the other side plating structure toward the knit area of ​​the dial needle by the guide groove. As a result, the second feeder reduces the risk of knitting a defective product in which the other side plating structure appears in a place where the other side ground knitting structure should appear and the other side ground knitting structure appears in a place where the other side plating structure should appear. Also, the first feeder guides the knitting yarn to be knitted as the one side ground knitting structure toward the knit area of ​​the cylinder needle by the one side yarn feeder, and guides the knitting yarn to be knitted as the one side plating structure toward the knit area of ​​the cylinder needle by the guide groove. As a result, the first feeder reduces the risk of knitting a defective product in which the one side plating structure appears in a place where the one side ground knitting structure should appear and the other side ground knitting structure appears in a place where the one side plating structure should appear. Due to these actions, the above method for producing a double knit fabric can reduce the risk of knitting a defective double knit fabric.

[0016] In another aspect of the method for producing a double knit fabric, a guide member for guiding the knitting yarn is attached to the feeder, and the knitting process is carried out in a state in which the knitting yarn guided by this guide member is further guided by one of the yarn feed ports, the guide groove, or the other yarn feed port of the feeder.

[0017] In a dial-cylinder type circular knitting machine, the number of feeders applied is directly related to the knitting speed of the knitted fabric, so it is generally considered preferable to arrange a large number of feeders at a high density for knitting. However, when the arrangement density of the feeders applied to the circular knitting machine increases, the yarn path arrangement space of the knitting yarn guided by each feeder becomes narrow, making it difficult to accurately determine the direction in which the yarn path of the knitting yarn extends. In contrast, according to the above method, the knitting yarn guided by one of the yarn feeders, the guide groove, or the other yarn feeder of the feeder is guided by a guide member attached to the feeder, thereby expanding the yarn path arrangement space of the knitting yarn guided by the feeder. This further reduces the risk of the yarn path of the knitting yarn guided by the feeder being changed in direction.

[0018] In another aspect of the method for producing a double knit fabric, the knitting step is carried out in a state where a guide member is disposed upstream of the feeder as viewed in a direction of rotation of a cylinder in a circular knitting machine.

[0019] In a dial-cylinder type circular knitting machine, the knitting yarn is fed from the upstream side to the downstream side in the cylinder rotation direction of the circular knitting machine to the knitting area of ​​the cylinder needle or dial needle. Here, according to the above method, the yarn path arrangement space of the knitting yarn guided by the feeder is expanded to the upstream side in the cylinder rotation direction of the circular knitting machine. As a result, the direction in which the yarn path of the knitting yarn from the guide member to the feeder extends is aligned with the direction in which the yarn path of the knitting yarn from the feeder to the knitting area extends, thereby reducing damage to the knitting yarn caused by rubbing against the feeder. Effect of the Invention

[0020] According to the present disclosure, when producing a double knit fabric in which one side knit fabric and the other side knit fabric are each configured by combining a ground knit fabric with a plating fabric, the risk of knitting defective products can be reduced. [Brief description of the drawings]

[0021] [Figure 1] 1 is an enlarged cross-sectional view of a main portion showing a schematic configuration of a double knit fabric 10 produced by a method for producing a double knit fabric according to a first embodiment. [Diagram 2] 2 is a photograph showing a main part of a circular knitting machine 40 which is a device for producing the double knit fabric 10 shown in FIG. 1. [Diagram 3] FIG. 3 is a front view showing the second feeder 30 shown in FIG. 2 alone. [Figure 4] 3 is a rear view of the second feeder 30 shown in FIG. 2 alone. FIG. [Diagram 5] 3 is a left side view showing the second feeder 30 shown in FIG. 2 alone. FIG. [Figure 6] 3 is a right side view showing the second feeder 30 shown in FIG. 2 alone. FIG. [Figure 7] FIG. 3 is a plan view showing the second feeder 30 shown in FIG. 2 alone. [Figure 8] FIG. 3 is a bottom view showing the second feeder 30 shown in FIG. 2 alone. [Figure 9] FIG. 1 is a knitting diagram for explaining a method for producing a double knit fabric according to a first embodiment. [Figure 10] FIG. 11 is a knitting diagram for explaining a method for producing a double knit fabric according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Hereinafter, embodiments for carrying out the present disclosure will be described with reference to the drawings.

[0023] First embodiment First, the structure of a double knit fabric 10 produced by the method for producing a double knit fabric according to the first embodiment will be described with reference to Fig. 1. This double knit fabric 10 has a five-layer structure in which one side fabric 11 constituting one surface and another side fabric 12 constituting the other surface are connected together by a connecting yarn 10A.

[0024] The knitted fabric 11 on one side has a weft knitted ground knit structure 11A on one side exposed to one side. In this embodiment, the ground knit structure 11A on one side is a circular knit plain weave structure with the front surface 11B facing one side and the back surface 11C facing the other side. This plain weave structure is made of spun yarn 10C.

[0025] The spun yarn 10C has the properties of a decorative yarn with thick and thin parts in some places. Therefore, the loops 11D in the plain weave of the one side ground knit structure 11A have variations in the size of the holes. In this embodiment, the spun yarn 10C is a yarn made by spinning cotton, a natural staple fiber, and has knots (not shown) derived from the cotton material as the thick parts. The spun yarn 10C also has knots resulting from uneven spinning of the fiber.

[0026] Furthermore, the one side knitted fabric 11 has a one side plating structure 11E aligned along the other side surface (i.e., the back surface 11C) of the one side ground knitted structure 11A. This one side plating structure 11E is composed of an elastic yarn 10D that is more easily elastically deformed than the spun yarn 10C that constitutes the one side ground knitted structure 11A. In this embodiment, the elastic yarn 10D is a filament yarn having polyurethane-based filaments.

[0027] The other side knitted fabric 12 has an other side ground knitted structure 12A, which is a weft knitted structure, exposed to the other side. In this embodiment, the other side ground knitted structure 12A is a circular knitted plain structure with the front surface 12B facing the other side and the back surface 12C facing the other side. This plain structure is made of the same kind of spun yarn 10E as the spun yarn 10C that constitutes the one side ground knitted structure 11A. Therefore, the loops 12D in the plain structure of the other side ground knitted structure 12A have variations in the size of the holes.

[0028] Furthermore, the other side knitted fabric 12 has a other side plating structure 12E aligned along one side surface (i.e., the back surface 12C) of the other side ground knitted structure 12A. In this embodiment, the other side plating structure 12E is composed of the same type of elastic yarn 10F as the elastic yarn 10D constituting the one side plating structure 11E. In other words, the elastic yarn 10F constituting the other side plating structure 12E is more easily elastically deformed than the spun yarn 10E constituting the other side ground knitted structure 12A.

[0029] The connecting yarn 10A is a false twist yarn having filaments in a crimped state. The filaments are long enough to be able to be formed into a yarn without spinning multiple filaments together. In this embodiment, the connecting yarn 10A is a false twist yarn having multiple nylon filaments in a bundled state.

[0030] The double knit fabric 10 can be produced by a dial-cylinder type circular knitting machine 40 (see FIG. 2) adjusted to have an interlocking interlocking. In other words, the circular knitting machine 40 is a device for producing the double knit fabric 10. As shown in FIG. 2, the circular knitting machine 40 is provided with a first feeder 20 and a second feeder 30, which are feeders according to the first embodiment, and feeders 40A and 40B, which are conventionally known feeders. In this embodiment, the above-mentioned feeders are periodically arranged in the order of feeder 40B, feeder 40A, second feeder 30, first feeder 20, feeder 40B, etc., as viewed in the cylinder rotation direction of the circular knitting machine 40 (from left to right in FIG. 2).

[0031] Here, the second feeder 30 has exactly the same configuration as the first feeder 20. Therefore, in the following, detailed explanations of each component of the first feeder 20 and the second feeder 30 will be given by representing each component of the second feeder 30. Each component of the first feeder 20 will be assigned a reference number obtained by replacing the tens digit of the reference number assigned to each component of the second feeder 30 with "2", and detailed explanations thereof will be omitted.

[0032] The feeder 40A is a conventionally known feeder that can set only one yarn path for the knitting yarn. The feeder 40A feeds the connecting yarn 10A as the knitting yarn to the knit area 41E located downstream of the feeder 40A in the cylinder rotation direction.

[0033] The feeder 40B has exactly the same configuration as the feeder 40A. The feeder 40B feeds the connecting yarn 10A as a knitting yarn to a knit region 42E located downstream of the feeder 40B in the cylinder rotation direction.

[0034] As shown in FIGS. 3 to 8, the second feeder 30 includes a main body 31, a handle 33, and a guide member 33A.

[0035] As shown in Fig. 2, the main body 31 is a plate-shaped member that is set by screws at a position above the needle bed 42A of the dial 42 on which the dial needles 42B are set in the circular knitting machine 40. As shown in Fig. 6, the main body 31 is set at a position radially outward (leftward in Fig. 6) of the dial 42 from the needle bed 41A on which the cylinder needles 41B are set in the cylinder 41 of the circular knitting machine 40. Hereinafter, the state in which the main body 31 is set in the circular knitting machine 40 will be simply referred to as the "set state." In addition, below, the up, down, left, right, front and rear directions of each component of the second feeder 30 will be described in terms of the directions when the main body 31 is in the set state.

[0036] 3 to 7, an elongated hole 31B is provided at the top of the main body 31 for screwing the main body 31 to the circular knitting machine 40. A nut portion 31C is provided at a portion of the main body 31 below the elongated hole 31B for screwing a male screw (for example, the handle 33 shown in FIG. 5) into the main body 31. A one-side yarn feeder 31A that penetrates the main body 31 from the upper left front side to the lower right rear side is provided at a portion of the main body 31 below the nut portion 31C. A protruding piece 32 is provided at the lower edge of the main body 31, protruding from the lower edge radially outward from the dial 42 (see FIG. 6).

[0037] The one-side yarn feed port 31A is opened on the rear surface (the surface on the near side of the paper as viewed in FIG. 4) of the main body 31. This rear surface is the surface that is on the radially inner side of the dial 42 in the set state, as shown in FIG.

[0038] The guide member 33A is a conventionally known loop guide of a type that is fixed to another member by screwing. In this embodiment, the guide member 33A is disposed so that its eyelet (a hole through which a linear member such as a yarn passes) is positioned on an extension line of the axis of the other-side yarn feeder 32A, which will be described later.

[0039] The handle 33 is a conventionally known circular post (male screw with a head formed in a long cylindrical shape). The handle 33 fixes the guide member 33A to the main body 31 by screwing the guide member 33A to the nut portion 31C of the main body 31. The head of the handle 33 also functions as a knob for handling the second feeder 30 and as a support for attaching other members (for example, the guide member 33B shown in FIG. 2) to the second feeder 30. In this embodiment, the guide member 33B is a conventionally known roller guide with a fixing device.

[0040] As shown in Fig. 6, the protruding piece 32 is a plate-like structure that protrudes perpendicularly from the lower edge of the main body 31. In the set state, the protruding piece 32 covers a dial needle protruding area 42D, which is an area where the dial needle 42B is protruded radially outward to receive a knitting yarn (see spun yarn 10E in Fig. 2) in the circular knitting machine 40, from the side where the dial needle 42B receives the knitting yarn (the upper side in Fig. 6).

[0041] A guide groove 30A is provided at a base portion where the overhanging piece 32 overhangs from the main body 31, extending from below the position where one side yarn feeder 31A is opened on the front surface of the main body 31 (see FIG. 3) toward the lower right rear side. In this embodiment, the guide groove 30A has a wall on one side (the upper right side in FIG. 6) formed by the main body 31, and a wall on the opposite side (the lower left side in FIG. 6) formed by the overhanging piece 32.

[0042] 3, 6, and 8, the other-side yarn feeder 32A is provided in a portion of the overhanging piece 32 that is forward of the guide groove 30A, penetrating the overhanging piece 32 from the upper front side to the lower rear side. As shown in FIG. 8, this other-side yarn feeder 32A opens at an end face on the lower side (the front side of the paper in FIG. 8) of the overhanging piece 32. As shown in FIG. 6, this end face is the face that faces the dial needle output region 42D in the set state. Moreover, the other-side yarn feeder 32A is provided so as to incline radially inward toward the dial needle output region 42D in the set state.

[0043] Next, a method for producing the above-mentioned double knit fabric 10 (hereinafter, simply referred to as the "method" in the description of the first embodiment) will be described. In the method, a setting step is performed to set the knitting yarn on an interlocking circular knitting machine 40 (see FIG. 2) to which the first feeder 20, the second feeder 30, and the feeders 40A and 40B are respectively applied. In the method, the double knit fabric 10 is produced by a knitting step in which the knitting yarn set in the setting step is knitted by the circular knitting machine 40.

[0044] In the setting process, the spun yarn 10C, which is the knitting yarn to be knitted as the one side ground knit structure 11A, is passed through the eyelet of the guide member 23A and the one side yarn feeder 21A of the first feeder 20 in this order. At this time, the one side yarn feeder 21A guides the spun yarn 10C toward the knit region 41C as the spun yarn 10C is passed from the radially outer side of the dial 42. Here, the knit region 41C is a knit region of the cylinder needles 41B set on the needle beds 41A of the cylinders 41 in the circular knitting machine 40, where the spun yarn 10C and the elastic yarn 10D are knitted in a state where they are aligned.

[0045] In the setting step, the elastic yarn 10D, which is the knitting yarn to be knitted as the one-side plating structure 11E, is hung in this order around the roller of the guide member 23B and the guide groove 20A of the first feeder 20. At this time, the guide groove 20A guides the hung elastic yarn 10D toward the knit region 41C.

[0046] In the setting process, the spun yarn 10E, which is the knitting yarn to be knitted as the other side ground knit structure 12A, is passed through the other side yarn feeder 32A of the second feeder 30 from above. At this time, the other side yarn feeder 32A guides the passed spun yarn 10E toward the knit area 42C. Here, the knit area 42C is a knit area of ​​the dial needle 42B set on the needle bed 42A of the dial 42 in the circular knitting machine 40, where the spun yarn 10E and the elastic yarn 10F are knitted in a state where they are aligned.

[0047] In the setting step, the elastic yarn 10F, which is the knitting yarn to be knitted as the other side plating structure 12E, is hung in this order around the roller of the guide member 33B and the guide groove 30A of the second feeder 30. At this time, the guide groove 30A guides the hung elastic yarn 10F toward the knit region 42C.

[0048] In the setting step, the connecting yarn 10A serving as the knitting yarn is passed through the feeder 40A. At this time, the feeder 40A guides the passed connecting yarn 10A toward the knit region 41E.

[0049] In the setting step, a connecting yarn 10A different from the connecting yarn 10A passed through the feeder 40A is passed through the feeder 40B as a knitting yarn. At this time, the feeder 40B guides the passed connecting yarn 10A toward the knit region 42E.

[0050] The knitting process is performed after the setting process is completed. The knitting settings in the knitting process are as shown in the knitting diagrams F1 to F6 in FIG. 9. Here, F1 is a knitting diagram showing the knitting settings of the connecting yarn 10A passed through the feeder 40A. F4 is a knitting diagram showing the knitting settings of the connecting yarn 10A passed through the feeder 40B. F2 is a knitting diagram showing the knitting settings of the spun yarn 10C knitted as one side ground knitting structure 11A. F5 is a knitting diagram showing the knitting settings of the elastic yarn 10D knitted as one side plating structure 11E. F3 is a knitting diagram showing the knitting settings of the spun yarn 10E knitted as the other side ground knitting structure 12A. F6 is a knitting diagram showing the knitting settings of the elastic yarn 10F knitted as the other side plating structure 12E.

[0051] The feeder of the present disclosure may be applied as a first feeder 20 that supplies a knitting yarn to be knitted as one side knitted fabric 11 in a dial-cylinder type circular knitting machine 40. Alternatively, the feeder of the present disclosure may be applied as a second feeder 30 that supplies a knitting yarn to be knitted as the other side knitted fabric 12 in a circular knitting machine 40. When the feeder of the present disclosure is the second feeder 30, the second feeder 30 guides the spun yarn 10E, which is the knitting yarn to be knitted as the other side ground knitting structure 12A, toward the knit area 42C of the dial needle 42B by the other side yarn feeder 32A, and guides the elastic yarn 10F, which is the knitting yarn to be knitted as the other side plating structure 12E, toward the knit area 42C by the guide groove 30A. As a result, the second feeder 30 reduces the risk of knitting a defective product in which the other side plating texture 12E appears where the other side ground knitting texture 12A should appear, and the other side ground knitting texture 12A appears where the other side plating texture 12E should appear. In addition, when the feeder of the present disclosure is the first feeder 20, the first feeder 20 guides the spun yarn 10C, which is the knitting yarn to be knitted as the one side ground knitting texture 11A, toward the knit area 41C of the cylinder needle 41B by the one side yarn feeder 21A, and guides the elastic yarn 10D, which is the knitting yarn to be knitted as the one side plating texture 11E, toward the knit area 41C by the guide groove 20A. As a result, the first feeder 20 reduces the risk of knitting a defective product in which the one side plating texture 11E appears where the one side ground knitting texture 11A should appear, and the one side ground knitting texture 11A appears where the one side plating texture 11E should appear. Due to these actions, the feeder of the present disclosure can reduce the risk of producing defective products when producing a double knit fabric 10 in which each of the one side knit fabric 11 and the other side knit fabric 12 is configured by combining a ground knit fabric with a plating fabric.

[0052] In the above circular knitting machine 40, the spun yarn 10E, which is the knitting yarn to be knitted as the other side ground knit structure 12A, is received by the dial needle 42B in the dial needle outlet area 42D and drawn toward the knit area 42C of the dial needle 42B. Here, according to the second feeder 30, the spun yarn 10E, which is the knitting yarn to be passed through the other side yarn feeder 32A, is output to the dial needle outlet area 42D, so that the dial needle 42B of the circular knitting machine 40 can receive the spun yarn 10E as it is and draw it into the knit area 42C. As a result, in the yarn path of the spun yarn 10E from the other side yarn feeder 32A to the knit area 42C of the dial needle 42B, the length of the part where the spun yarn 10E is not guided by other members is shortened, and a feeder can be provided that further reduces the risk of the direction of the yarn path of the spun yarn 10E being changed.

[0053] In the above circular knitting machine 40, the dial needle 42B draws in the spun yarn 10E toward the knit region 42C from the radially outer side toward the radially inner side of the dial 42. Here, according to the second feeder 30, the spun yarn 10E, which is the knitting yarn passed through the other side yarn feeder 32A, is extended in a state inclined radially inward toward the dial needle outlet region 42D. This makes it possible to provide a feeder that can more smoothly draw in the spun yarn 10E by the dial needle 42B.

[0054] According to the above-mentioned method, the second feeder 30 guides the spun yarn 10E, which is the knitting yarn to be knitted as the other side ground knitting structure 12A, toward the knit area 42C of the dial needle 42B by the other side yarn feeder 32A, and guides the elastic yarn 10F, which is the knitting yarn to be knitted as the other side plating structure 12E, toward the knit area 42C by the guide groove 30A. This reduces the risk of knitting a defective product in which the other side plating structure 12E appears in the place where the other side ground knitting structure 12A should appear and the other side plating structure 12A appears in the place where the other side plating structure 12E should appear. The first feeder 20 also guides the spun yarn 10C, which is the yarn to be knitted as the one side ground knit structure 11A, toward the knit area 41C of the cylinder needles 41B by the one side yarn feeder 21A, and guides the elastic yarn 10D, which is the yarn to be knitted as the one side plating structure 11E, toward the knit area 41C by the guide groove 20A. This causes the first feeder 20 to make the one side plating structure 11E appear where the one side ground knit structure 11A should appear, thereby reducing the risk of knitting a defective product in which the one side ground knit structure 11A appears where the one side plating structure 11E should appear. Due to these actions, the method can reduce the risk of knitting a defective double knit fabric.

[0055] In addition, according to the method, the knitting yarn guided by one of the yarn feed ports, the guide groove, or the other yarn feed port of the feeder (first feeder 20 or second feeder 30) is guided by a guide member (guide member 23A, guide member 23B, or guide member 33B) attached to the feeder, thereby expanding the yarn path arrangement space of the knitting yarn guided by the feeder. This further reduces the risk of the yarn path of the knitting yarn guided by the feeder being switched in the extending direction.

[0056] Also, according to the method, the yarn path arrangement space of the knitting yarn guided by the feeder (the first feeder 20 or the second feeder 30) is expanded upstream as viewed in the cylinder rotation direction in the circular knitting machine 40. As a result, the direction in which the yarn path of the knitting yarn extends from the guide member (the guide member 23A, the guide member 23B, or the guide member 33B) to the feeder is aligned with the direction in which the yarn path of the knitting yarn extends from the feeder to the knit region, thereby reducing damage to the knitting yarn caused by rubbing against the feeder.

[0057] Second embodiment Next, a method for producing a double knit fabric according to a second embodiment (hereinafter, simply referred to as the "method" in the description of the second embodiment) will be described. The method is an embodiment in which the circular knitting machine 40 used in the method for producing a double knit fabric according to the first embodiment is used, but the application of a feeder to the circular knitting machine 40 and the knitting mode of the knitting yarn are changed.

[0058] In the method, four of the first feeder 20, the second feeder 30, and the feeders 40A and 40B used in the method for producing a double knit fabric according to the first embodiment are considered as one set, and an appropriate number of these sets are applied to the circular knitting machine 40. These feeders are periodically arranged in the order of feeder 40B, second feeder 30, first feeder 20, feeder 40A, feeder 40B, etc., as viewed in the cylinder rotation direction of the circular knitting machine 40.

[0059] In the method, a double knit fabric is produced by performing knitting steps according to knitting diagrams shown as F1 to F4 in Fig. 10 on an interlocking circular knitting machine 40 to which the above-mentioned feeders are applied. These knitting diagrams show knitting steps similar to those of a type of double knit fabric called "ponte de roma".

[0060] In FIG. 10, F1 is a knitting diagram showing the knitting setting (skipping one stitch) of the knitting yarn passed through the feeder 40A. F2 is a knitting diagram showing the knitting setting (skipping one stitch rib knitting set in the part skipped by the rib knitting of F1) of the knitting yarn passed through the feeder 40B. These knitting yarns constitute the structure of the connecting yarn in the produced double knit fabric. The knitting yarns passed through the feeders 40A and 40B can be appropriately selected spun yarns or filament yarns. In this embodiment, the same type of yarn is used as the knitting yarns passed through the feeders 40A and 40B.

[0061] F3 is a knitting diagram showing the knitting setting ((bare) plain knitting by dial needle 42B) of the knitting yarn guided by the second feeder 30. Here, the "knitting yarn guided by the second feeder 30" refers to two knitting yarns, one that is passed through the other side yarn feeder 32A of the second feeder 30 and guided, and the other that is similarly hung on the guide groove 30A and guided. These knitting yarns are guided in an aligned state to the knit area of ​​the dial needle 42B located immediately below the downstream side of the cylinder rotation direction of the circular knitting machine 40 with respect to the second feeder 30. In this knit area, the knitting yarn guided from the other side yarn feeder 32A constitutes the other side ground knit structure in the double knit fabric to be produced. In the above knit area, the knitting yarn guided from the guide groove 20A constitutes the other side plating structure in the double knit fabric to be produced. In this embodiment, the knitting yarn for forming the ground knitting structure on the other side is the same type of yarn as the knitting yarn passed through the feeders 40A and 40B. Also, the knitting yarn for forming the plating structure on the other side is a filament yarn having a polyurethane filament.

[0062] F4 is a knitting diagram showing the knitting setting ((bare) plain knitting by cylinder needle 41B) of the knitting yarn guided by the first feeder 20. Here, the "knitting yarn guided by the first feeder 20" refers to two knitting yarns, one of which is passed through one side yarn feeder 21A of the first feeder 20 and guided, and the other of which is passed through the guide groove 20A and guided. These knitting yarns are guided in an aligned state to the knit area of ​​the cylinder needle 41B located immediately below the first feeder 20 on the downstream side in the cylinder rotation direction of the circular knitting machine 40. In this knit area, the knitting yarn guided from the one side yarn feeder 21A constitutes the one side ground knit structure of the double knit fabric to be produced. In the above knit area, the knitting yarn guided from the guide groove 20A constitutes the one side plating structure of the double knit fabric to be produced. In this embodiment, the knitting yarn for forming the ground knitted structure on one side is the same type of yarn as the knitting yarn passed through feeder 40A and feeder 40B. Also, the knitting yarn for forming the plating structure on one side is the same type of filament yarn as the knitting yarn for forming the plating structure on the other side.

[0063] According to the above-mentioned method, it is possible to enjoy the same effects as those described above as the method for producing a double knit fabric according to the first embodiment.

[0064] According to the above-mentioned method, the circular knitting machine 40 can knit a double knit fabric having a five-layer structure as a whole by a knitting process similar to that of a ponchideroma. This makes it possible to produce a double knit fabric having a five-layer structure as a whole and having the advantages of a ponchideroma (such as being relatively resistant to stretching and drooping as a knit fabric).

[0065] The above describes the embodiments for carrying out the present disclosure by using the first and second embodiments described above. However, it is clear to those skilled in the art that various substitutions, modifications, and changes are possible without departing from the purpose of the present disclosure. That is, the embodiment for carrying out the present disclosure may include all substitutions, modifications, and changes that do not depart from the spirit and purpose of the claims attached hereto. For example, the following various embodiments can be carried out as the embodiment for carrying out the present disclosure.

[0066] (1) In the method for producing a double knit fabric according to the first or second embodiment, two types of feeders are applied to a circular knitting machine: the feeder according to the present disclosure and a feeder of a type capable of setting only one yarn path for the knitting yarn. The feeder of the type capable of setting only one yarn path for the knitting yarn passes through the knitting yarn for forming the structure of the connecting yarn in the double knit fabric. However, the method for producing a double knit fabric according to the present disclosure may be performed by applying only the feeder according to the present disclosure to a circular knitting machine. In this case, the knitting yarn for forming the structure of the connecting yarn can be guided to the knit area of ​​the knitting yarn by passing it through either one side yarn feed port or the other side yarn feed port of the feeder.

[0067] (2) The feeder according to the first embodiment is provided with a guide member that further guides the knitting yarn guided by one of the yarn feeders, the guide groove, or the other yarn feeder. However, the feeder according to the present disclosure may not be provided with such a guide member. The feeder according to the present disclosure may also be provided with a guide member that further guides the knitting yarn guided by another feeder applied to the same circular knitting machine. In this case, the yarn path arrangement space of the knitting yarn guided by the other feeder can be expanded beyond the arrangement space allocated to the other feeder, thereby further reducing the risk of the yarn path of the knitting yarn being switched in the extending direction.

[0068] (3) In the feeder according to the present disclosure, the guide groove is not limited to being provided at the base portion where the protruding piece protrudes from the main body, but may be provided at a position closer to the tip end of the protruding piece from the base portion. In this case, the protruding piece constitutes at least a part of the wall of the guide groove. [Explanation of symbols]

[0069] 10 Double knit fabric 10A Connecting Thread 10C Spun Yarn 10D Elastic Yarn 10E Spun Yarn 10F Elastic thread 11 One side knitting 11A One-sided knitting 11B Front Mask 11C Urame Mask 11D Rina 11E Unilateral plating tissue 12 Other side knitted fabric 12A Other side knitting 12B Front Mask 12C Urame Mask 12D Rina 12E Other side plating tissue 20 First Feeder (Feeder) 20A Guide groove 21A One side yarn feed port 23A Guide material 23B Guide member 30 Second Feeder (Feeder) 30A Guide groove 31 Main unit 31A One side yarn feed port 31B long hole 31C Nut 32 Projection piece 32A Other side yarn feed port 33 Handle 33A Guide member 33B Guide member 40 Circular Knitting Machine 40A Feeder 40B Feeder 41 Cylinder 41A Needle bed 41B Cylinder needle 41C Knitted area 41D Cylinder needle area 41E Knitted area 42 Dial 42A Needle bed 42B Dial Needle 42C Knitted area 42D Dial needle area 42E Knitted area

Claims

1. The knitted fabric has a structure in which one side of the knitted fabric constituting the surface on one side and the other side of the knitted fabric constituting the surface on the other side are connected together by a connecting yarn, The one side knitted fabric includes a one side ground knitted structure exposed to the one side, and a one side plating structure aligned along a surface of the one side ground knitted structure on the other side, The other side knitted fabric includes an other side ground knitted structure exposed to the other side, and an other side plating structure aligned along the surface of the one side of the other side ground knitted structure. For double knit fabrics, A feeder applied to a dial-cylinder type circular knitting machine which is a machine for producing the double knit fabric, comprising: A main body is set at a position radially outward of a dial from a needle bed of a cylinder in the circular knitting machine; a one-side yarn feeder that is opened on a surface of the body that is on the radially inner side of the dial, and that guides the knitting yarn to be knitted as the one-side ground knit structure toward a knit region of a cylinder needle set on a needle bed of the cylinder when the knitting yarn is passed through from the radially outer side; a guide groove for guiding the knitting yarn to be knitted as the other side plating structure or the one side plating structure toward a knit area of ​​a dial needle set on a needle bed of the dial or a knit area of ​​the cylinder needle; a protruding piece that protrudes outward in the radial direction from the main body and constitutes at least a part of a wall of the guide groove; a second side yarn feeder that is provided on the protruding piece and that guides the knitting yarn to be knitted as the second side ground knit structure toward the knit region of the dial needle when the knitting yarn is passed through the second side yarn feeder; Equipped with Feeder.

2. 2. A feeder according to claim 1, The protruding piece covers a dial needle protruding area, which is an area where the dial needle is protruding outward in the radial direction to receive the knitting yarn in the circular knitting machine, from the side where the dial needle receives the knitting yarn, the other-side yarn feeder is opened at an end surface of the protruding piece that faces the dial needle-out area, Feeder.

3. 3. A feeder according to claim 2, the other side yarn feeder is inclined radially inward toward the dial needle output area; Feeder.

4. The knitted fabric has a structure in which one side of the knitted fabric constituting the surface on one side and the other side of the knitted fabric constituting the surface on the other side are connected together by a connecting yarn, The one side knitted fabric includes a one side ground knitted structure exposed to the one side, and a one side plating structure aligned along a surface of the one side ground knitted structure on the other side, The other side knitted fabric includes an other side ground knitted structure exposed to the other side, and an other side plating structure aligned along the surface of the one side of the other side ground knitted structure. A method for producing a double knit fabric on a dial-cylinder type circular knitting machine, comprising the steps of: A first feeder and a second feeder, each of which is a feeder according to any one of claims 1 to 3, are applied to the circular knitting machine, and A yarn to be knitted as the ground knitting structure on the one side is passed through the one side yarn feeder of the first feeder from the radially outer side, A knitting yarn to be knitted as the one-side plating structure is hung on the guide groove of the first feeder, A knitting yarn to be knitted as the other side plating structure is hung on the guide groove of the second feeder, In a state where a knitting yarn to be knitted as the other side ground knitting structure is passed through the other side yarn feeder of the second feeder, The double knit fabric is produced by a knitting process in which the knitting yarns are knitted by the circular knitting machine. A method for producing a double knit fabric.

5. A method for producing a double knit fabric according to claim 4, comprising the steps of: a guide member for guiding a knitting yarn is attached to the feeder, and the knitting step is carried out in a state in which the knitting yarn guided by the guide member is further guided by any one of the one-side yarn feeder, the guide groove, or the other-side yarn feeder of the feeder. A method for producing a double knit fabric.

6. A method for producing a double knit fabric according to claim 5, comprising the steps of: The knitting step is carried out in a state where the guide member is disposed upstream of the second feeder as viewed in a cylinder rotation direction of the circular knitting machine. A method for producing a double knit fabric.

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